TermiNexus
a44f55574c
方案 A（帧缓冲映射）： - 去掉帧缓冲的 PTE_PCD，改为回写映射。原先非缓存映射下每次写屏直通设备，大块刷新极慢； QEMU 下回写显示正确（TCG 不模拟缓存不一致），真机严格正确应改 write-combining(PAT)， 已在代码注释里写明。 - 说明：“只刷脏行”本已是现状（_mark_rows_dirty 按区域标脏，全屏刷仅启动那一次）。 方案 C（鼠标驱动加固，drivers/input/mouse/mouse.vp）： - irq_handler 丢弃带 X/Y overflow 位（bit6/bit7）的包：此时设备给的是饱和值，直接采用 会产生 ±127 级跳变，表现为光标“飞”。 - init 中在 0xF6(Set Defaults) 之后用 0xE8/0x03 把分辨率设为 8 counts/mm，避免默认最粗的 4 counts/mm 造成每计数位移偏大。
393 lines
17 KiB
Plaintext
393 lines
17 KiB
Plaintext
from stdint import *
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import bootinfo
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import intr
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import platform.pch as pch
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import platform.pch.timer as timer
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import platform.pch.rtc as rtc
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import drivers.serial.uart.su8250 as su8250
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import drivers.serial.uart.serial as serial
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import drivers.devfs.devfs as devfs
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import paging.paging as paging
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import drivers.video.vesafb.vga as vga
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import drivers.video.vesafb.gfx as gfx
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import drivers.storage.ide.ide as ide
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import drivers.fs.fat32.fat32 as fat32
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import drivers.fs.fat32.fat32_types as fat32_types
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import mm.mm as mm
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import string
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import sched.sched as sched
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import sched.process as proc
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import drivers.input.keyboard.keyboard as keyboard
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import drivers.input.mouse.mouse as mouse
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import drivers.usb.usb as usb
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import drivers.core.cpu.cpu as cpu
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import drivers.core.cpu.apic as apic
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import viperlib
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import services.keyboard as kbd_svc
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import services.mouse as mse_svc
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import services.desktop as desktop
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import intr.syscall as syscall
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import execrunner.elf as elf
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import asm
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kbd_tid: int = -1
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mse_tid: int = -1
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# 影子副本 + 校验：__init__ 的 fb/width/height/pitch 局部量曾被偶发写坏（被清零，
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# 导致 desktop.start 拿到 fb=0 → 刷新把后备缓冲写到物理 0 起，覆盖内核自身）。
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# 这里保存模块级影子并在关键节点比对，命中即 fail-fast 暴露写坏源，不再让损坏值被静默使用。
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_ShadowFb: uint64 = 0
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_ShadowW: int = 0
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_ShadowH: int = 0
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_ShadowPitch: int = 0
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def _SetFrameShadow(fb: rawptr, w: int, h: int, pitch: int):
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global _ShadowFb, _ShadowW, _ShadowH, _ShadowPitch
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_ShadowFb = uint64(fb)
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_ShadowW = w
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_ShadowH = h
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_ShadowPitch = pitch
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def _CheckFrameLocals(tag: const str, fb: rawptr, w: int, h: int, pitch: int):
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if uint64(fb) != _ShadowFb or w != _ShadowW or h != _ShadowH or pitch != _ShadowPitch:
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b: [176]char
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viperlib.snprintf(&b, 176,
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"[FATAL] %s: frame locals corrupted fb=0x%lx w=%d h=%d pitch=%d (expect 0x%lx %d %d %d)\n",
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tag, uint64(fb), w, h, pitch, _ShadowFb, _ShadowW, _ShadowH, _ShadowPitch)
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serial.puts(&b)
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while True:
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sched.Scheduler._yield()
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BootInfo: bootinfo.bootinfo*
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class ViperKernel:
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BootInfo: bootinfo.bootinfo*
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VGA: vga._VGAScreenDriver*
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def __init__(self):
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global BootInfo
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self.BootInfo = BootInfo
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cpu.enable_sse()
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serial.init()
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serial.puts("===== ViperOS VKernel Test\n =====")
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serial.puts("V2.3.8\n")
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intr.gdt.init()
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cpu.msr_write(cpu.IA32_KERNEL_GS_BASE, uint64(&cpu._per_cpu))
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serial.puts("[main] gdt init done\n")
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intr.idt.init()
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syscall.init()
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serial.puts("[main] syscall init done\n")
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sched.Scheduler()
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serial.puts("[main] sched init done\n")
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timer.timer_init()
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serial.puts("[main] timer init done\n")
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#mouse.init()
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#serial.puts("[main] mouse init done\n")
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# 必须初始化 APIC：QEMU/OVMF（UEFI）下本地 APIC 已启用，PIC 外部中断
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# 须经 LINT0 送达 CPU。apic.init() 将 LINT0 配为 EXTINT（取消屏蔽），
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# 否则定时器中断被 APIC 吞掉 → sti 后 msleep 永远等不到 ticks 挂死。
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apic.early_init()
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serial.puts("[main] apic init done\n")
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# [DBG] 综合诊断：判定 LAPIC MMIO 是否真正可访问/可写（用后移除）
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_dbg_base: uint64 = apic.get_base()
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_dbg_ver: uint32 = apic.read(0x030) # LAPIC_VERSION：真 LAPIC 应为 0x50014
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_dbg_svr: uint32 = apic.read(0x0F0) # LAPIC_SVR：init 已写 0x1FF
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apic.write(0x350, 0x700) # 再次写 LINT0，验证写粘性
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_dbg_lint0: uint32 = apic.read(0x350)
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_dbg_feat: uint32 = cpu.detect_features_static()
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_dbg_buf: [160]char
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viperlib.snprintf(&_dbg_buf, 160,
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"[DBG] base=0x%lx ver=0x%x svr=0x%x lint0=0x%x feat=0x%x apic=%d\n",
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_dbg_base, _dbg_ver, _dbg_svr, _dbg_lint0, _dbg_feat,
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1 if (_dbg_feat & cpu.CPU_FEATURE_APIC) else 0)
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serial.puts(&_dbg_buf)
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# [DBG] 读回 IDT 门 32，验证 isr32 分发地址是否正确安装（用后移除）
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_g32: uint64 = (uint64(intr.idt.idt[32].base_low) | (uint64(intr.idt.idt[32].base_middle) << 16) | (uint64(intr.idt.idt[32].base_high) << 32))
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_g32buf: [96]char
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viperlib.snprintf(&_g32buf, 96, "[DBG] idt32 base=0x%lx sel=0x%x type=0x%x\n", _g32, intr.idt.idt[32].selector, intr.idt.idt[32].type_attr)
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serial.puts(&_g32buf)
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asm.sti()
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serial.puts("[main] sti done\n")
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# [DBG] 软件触发 int 0x20：门 32 有效则分发到 isr32→timer_handler 打印 H 并返回；
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# 门无效则 #GP（isrCommonhandler 打印 [GP] err=0x20），一次性区分分发路径（用后移除）
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serial.puts("[DBG] before swint\n")
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__asm__("int 0x20", op=[ASM_DESCR.CLOBBER_MEMORY])
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serial.puts("[DBG] after swint\n")
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# [DBG] 读 PIC1 ISR：bit0 置位说明 PIT IRQ0 已到达 PIC 并被响应（用后移除）
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asm.outb(0x20, 0x0B) # OCW3 读 ISR
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asm.io_wait()
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_pic_isr: uint8 = asm.inb(0x20)
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_isrbuf: [48]char
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viperlib.snprintf(&_isrbuf, 48, "[DBG] pic_isr=0x%x\n", _pic_isr)
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serial.puts(&_isrbuf)
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timer.timer_msleep(100)
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serial.puts("[main] msleep done\n")
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rtc.rtc_init()
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serial.puts("[main] rtc init done\n")
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ncpu: uint32 = apic.get_cpu_count()
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ncpu_cr: [32]char
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viperlib.snprintf(&ncpu_cr, 32, "[main] cpu_count=%u\n", ncpu)
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serial.puts(ncpu_cr)
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if ncpu > 1:
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apic.start_aps()
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serial.puts("[main] kernel init done\n")
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fb: rawptr = rawptr(BootInfo.framebuffer_addr)
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width: int = int(BootInfo.framebuffer_width)
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height: int = int(BootInfo.framebuffer_height)
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pitch: int = int(BootInfo.framebuffer_pitch)
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fb_format: int = int(BootInfo.framebuffer_format)
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fb_size: uint64 = BootInfo.framebuffer_size
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_SetFrameShadow(fb, width, height, pitch)
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# [DBG] 打印 BootInfo 指针与 memmap 原始字段，定位全 0 根因（用后移除）
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_dbbuf: [140]char
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viperlib.snprintf(&_dbbuf, 140, "[main] BootInfo=0x%lx mmap=0x%lx mmsz=%lu mmd=%lu fb=0x%lx\n",
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uint64(BootInfo), BootInfo.MemmapAddr, BootInfo.MemmapSize,
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BootInfo.MemmapDescSize, BootInfo.framebuffer_addr)
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serial.puts(&_dbbuf)
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# [DBG] 转储 BootInfo 地址处原始 88 字节（用后移除）
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_dbraw: [16]char
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for _dbi in range(88):
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if (_dbi % 16) == 0:
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viperlib.snprintf(&_dbraw, 16, "\n[DB] %04x:", _dbi)
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serial.puts(&_dbraw)
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_dbv: uint8 = *(uint8*(uint64(BootInfo) + uint64(_dbi)))
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viperlib.snprintf(&_dbraw, 16, " %02x", _dbv)
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serial.puts(&_dbraw)
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serial.puts("\n[DB] dump end\n")
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# 内核镜像末端（含 .bss；__bss_end 见 VKernel/linker.ld）：传给 mm.init 使其在挑选
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# 堆 arena 时排除整块内核镜像 —— .bss 不占文件大小，bootloader 只按文件大小预留页，
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# 否则 .bss 尾部（ticks/_perf_* 等全局量）会落在 memmap 空闲区里被堆占用。
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_kern_end: uint64 = 0
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__asm__(f"lea {asmout(_kern_end, ASM_DESCR.OUTPUT_REG)}, [rip + __bss_end]",
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op=[ASM_DESCR.CLOBBER_MEMORY])
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if BootInfo is not None:
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paging.init(BootInfo.MemmapAddr, BootInfo.MemmapSize)
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fb_pages: uint64 = (fb_size + uint64(0xFFF)) >> uint64(12)
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for fpi in range(fb_pages):
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fva: uint64 = uint64(fb) + fpi * uint64(0x1000)
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# 帧缓冲改用回写（去掉 PTE_PCD）：此前按非缓存映射，每次写屏都直通设备，
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# 全屏/大块刷新极慢。回写在 QEMU 下显示正确（TCG 不模拟缓存不一致）；
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# 真机若要严格正确应改为 write-combining（走 PAT）。
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paging.MapPage(fva, fva, paging.PTE_WRITABLE)
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mm.init(BootInfo.MemmapAddr, BootInfo.MemmapSize, BootInfo.MemmapDescSize, BootInfo.framebuffer_addr, fb_size, BootInfo.kernel_PhysAddr, _kern_end)
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pt_pool_buf: rawptr = mm.malloc(uint64(513) * uint64(4096))
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paging.init_pool(pt_pool_buf, uint64(513) * uint64(4096))
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else:
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paging.init(0, 0)
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mm.init(0, 0, 0, 0, 0)
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pt_pool_buf2: rawptr = mm.malloc(uint64(513) * uint64(4096))
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paging.init_pool(pt_pool_buf2, uint64(513) * uint64(4096))
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serial.puts("[main] paging and mm init done\n")
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# 把 .rodata（字符串常量/vtable）映射只读 + CR0.WP=1：
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# 越界写立即 #PF 暴露 cr2/rip（此前静默破坏格式串/路径/符号名 → P2/P3/P4/P5 连锁）
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paging.ProtectKernelRO()
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# [PG] 页表诊断：确认 .rodata 是否真正只读（2MB 大页会令 MakeRangeRO 失效）
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paging.DumpMapping(0x100000, "kern")
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paging.DumpMapping(0x60000, "bstk")
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paging.DumpMapping(0x80000000, "fb")
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proc.ProcessManager()
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serial.puts("[main] process manager init done\n")
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ide.init()
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serial.puts("[main] ide init done\n")
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serial.puts("[main] initializing FAT32 filesystem\n")
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scan_res: int = fat32.scan_drives()
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ndrives: int = fat32.get_drive_count()
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ndrives_cr: [64]char
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viperlib.snprintf(&ndrives_cr, 64, "[fat32] scan_res=%d found %d drives\n", scan_res, ndrives)
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serial.puts(&ndrives_cr)
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if ndrives > 0:
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mount_res: int = fat32.mount()
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if mount_res == 0:
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dp: fat32_types.dirobj
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res: int = fat32.opendir("/", &dp)
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if res == 0:
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serial.puts("[fat32] listing 0:/\n")
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for count in range(20):
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info: fat32_types.fileinfo
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res2: int = fat32.readdir(&dp, &info)
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if res2 != 0: break
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if info.fname[0] == 0: break
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is_dir: int = 1 if (info.attr & fat32_types.AM_DIR) else 0
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entry_cr: [300]char
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viperlib.snprintf(&entry_cr, 300, " %s size=%lu dir=%d\n", &info.fname[0], info.file_size, is_dir)
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serial.puts(&entry_cr)
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fat32.closedir(&dp)
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serial.puts("[fat32] directory listing done\n")
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else:
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serial.puts("[fat32] failed to open root directory\n")
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# Load ELF apps BEFORE running destructive FAT32 tests
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serial.puts("[main] loading ELF apps...\n")
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dp_apps: fat32_types.dirobj
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apps_res: int = fat32.opendir("/APPS", &dp_apps)
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if apps_res == 0:
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serial.puts("[main] APPS dir listing:\n")
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for ac in range(20):
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ai: fat32_types.fileinfo
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ar: int = fat32.readdir(&dp_apps, &ai)
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if ar != 0: break
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if ai.fname[0] == 0: break
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ae: [300]char
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viperlib.snprintf(&ae, 300, " %s size=%lu\n", &ai.fname[0], ai.file_size)
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serial.puts(&ae)
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fat32.closedir(&dp_apps)
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else:
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serial.puts("[main] APPS dir not found\n")
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# [DIAG] app 自动启动已禁用：不 spawn 任何 .elf，不加载任何 .so，
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# 专注排查内核自身的概率性崩溃（sched 启动 / desktop 启动后 30s）。
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sched.Scheduler.disable()
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serial.puts("[main] app autostart disabled\n")
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sched.Scheduler.enable()
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# FAT32 destructive tests removed to prevent disk.img corruption
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# (write/rename/delete/mkdir/rmdir permanently modify the disk image)
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fat32.unmount()
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serial.puts("[fat32] unmounted\n")
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else:
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serial.puts("[fat32] mount failed\n")
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else:
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serial.puts("[fat32] no drives found\n")
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devfs.devfs_init()
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devfs.devfs_register_serial0()
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devfs.devfs_register_serial1()
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devfs.devfs_register_keyboard()
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devfs.devfs_register_mouse()
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serial.puts("[main] sched started\n")
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fd: int = devfs.devfs_open("/dev/serial0", 0)
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buf: [64]char
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string.memset(&buf, 0, 64)
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devfs.devfs_write(fd, "hello from devfs!", 17)
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devfs.devfs_read(fd, &buf, 64)
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devfs.devfs_close(fd)
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cr: [30]char
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string.memset(&cr, 0, 30)
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viperlib.snprintf(&cr, 30, "hello %d %.2f", 42, float(0.24))
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serial.puts(cr)
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serial.puts("\n")
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bootinfo_cr: [256]char
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string.memset(&bootinfo_cr, 0, 256)
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viperlib.snprintf(&bootinfo_cr, 256, "Bootinfo 0x%016lx %lu %lu %lu %lu %lu map 0x%lx+%lu descsize=%lu",
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BootInfo.framebuffer_addr,
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BootInfo.framebuffer_format,
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BootInfo.framebuffer_width,
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BootInfo.framebuffer_height,
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BootInfo.framebuffer_pitch,
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BootInfo.framebuffer_size,
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BootInfo.MemmapAddr,
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BootInfo.MemmapSize,
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BootInfo.MemmapDescSize)
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serial.puts(bootinfo_cr)
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serial.puts("\n")
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a: const str = "Hello"
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serial.puts(&a[4]) # o
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serial.puts("\n")
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d: const int = 42
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b: const int* = &d
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string.memset(&cr, 0, 4)
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viperlib.snprintf(&cr, 30, "%d", b[0]) # 42
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serial.puts(cr)
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serial.puts("\n")
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# paging and mm already initialized before FAT32
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usb.init()
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_CheckFrameLocals("after_usb", fb, width, height, pitch)
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serial.puts("[main] starting keyboard service\n")
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kbd_svc.start()
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serial.puts("[main] starting mouse service\n")
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mse_svc.start()
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serial.puts("[main] services started\n")
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VGA_drv = vga._VGAScreenDriver(fb, width, height, pitch, fb_format)
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self.VGA = &VGA_drv
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self.VGA.Print(100, 100, "ViperOS VKernel Test")
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_CheckFrameLocals("after_vga", fb, width, height, pitch)
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serial.puts("你好\n")
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serial.puts("[main] starting desktop\n")
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_CheckFrameLocals("pre_desktop", fb, width, height, pitch)
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desktop.start(fb, width, height, pitch)
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serial.puts("[main] desktop started\n")
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# ELF apps already loaded before FAT32 tests
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serial.puts("[main] entering main loop\n")
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# sched.sched_dump()
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last_sec: uint32 = 0
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loop_cnt: uint32 = 0
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while True:
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cur_sec: uint32 = timer.timer_get_seconds()
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if cur_sec != last_sec:
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last_sec = cur_sec
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#if cur_sec % 5 == 0:
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# sched.sched_dump()
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loop_cnt += 1
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sched.Scheduler._yield()
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#while True:
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# cube.RenderScene(back_fb, cube.SCREEN_W, cube.SCREEN_H, time)
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# string.memcpy(fb, back_fb, width * height * 4)
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# serial.puts("time")
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# time += float(0.1)
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# circle(width / 2, height / 2, 180, fb)
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# circle(640, 400, 180, 0xFFFFFFFF)
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# X 字符串遍历
|
||
# c.Cast 更换
|
||
# 时钟
|
||
# PCI
|
||
# SHA1 它者文件更新
|
||
# assets
|
||
# X attributes语法和谐
|
||
# 合成式类型转换
|
||
|
||
|
||
VKP: ViperKernel*
|
||
# stackrealign：_start 由 bootloader jmp 进入（rsp≡0 mod 16），llc 按 call 约定
|
||
# 假设入口 rsp≡8 → 帧偏 8 → 变参函数 movaps #GP。动态重对齐栈修复。
|
||
@__attribute__(section(".text.startup"), aligned(16), stackrealign)
|
||
def _start() -> int:
|
||
global VKP, BootInfo
|
||
saved_rdi: uint64
|
||
__asm__(f"mov {asmout(saved_rdi, ASM_DESCR.OUTPUT_REG)}, rdi",
|
||
op = [ASM_DESCR.CLOBBER_MEMORY, ASM_DESCR.CLOBBER_RDI])
|
||
asm.BSSClean()
|
||
BootInfo = bootinfo*(saved_rdi) # 转为 bootinfo*
|
||
VKP = &ViperKernel()
|
||
while True:
|
||
asm.sti()
|
||
asm.hlt()
|
||
sched.Scheduler._yield()
|
||
return 0
|